PCM1691 datasheet(3/47 Pages) TI

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ELECTRICAL CHARACTERISTICS: Digital Input/Output

PCM1691

www.ti.com.............................................................................................................................................................................................. SBAS450 – OCTOBER 2008

All specifications at TA = +25°C, VCC1 = VCC2 = 5 V, VDD = 3.3 V, fS = 48 kHz, SCKI = 512 fS, 24-bit data, and Sampling

mode = Auto, unless otherwise noted.

PCM1691

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

DATA FORMAT

Audio data interface format

I2S, LJ, RJ, DSP, TDM

Audio data word length

16, 20, 24, 32

Bits

Audio data format

MSB first, twos complement

Sampling frequency

192

kHz

128 fS, 192 fS, 256 fS,

System clock frequency

2.048

36.864

MHz

384 fS, 512 fS, 768 fS, 1152 fS

INPUT LOGIC

VIH

(1) (2)

2.0

VDD

VDC

Input logic level

VIL

(1) (2)

0.8

VDC

VIH

(3) (4)

2.0

5.5

VDC

Input logic level

VIL

(3) (4)

0.8

VDC

IIH

(2) (3)

VIN = VDD

±10

µA

Input logic current

IIL

(2) (3)

VIN = 0 V

±10

µA

IIH

(1) (4)

VIN = VDD

+65

+100

µA

Input logic current

IIL

(1) (4)

VIN = 0 V

±10

µA

OUTPUT LOGIC

VOH

(5)

IOUT = –4 mA

2.4

VDC

Output logic level

VOL

(5) (6)

IOUT = +4 mA

0.4

VDC

REFERENCE OUTPUT

VCOM output voltage

0.5 × VCC1

VCOM output impedance

7.5

Ω

Allowable VCOM output source/sink current

µA

(1)

BCK and LRCK (Schmitt trigger input with 50-k

Ω typical internal pull-down resistor).

(2)

DIN1/2/3/4 (Schmitt trigger input).

(3)

SCKI, TEST/ADR1/RSV, MC/SCL/FMT, MD/SDA/DEMP, and AMUTEI (Schmitt trigger input, 5-V tolerant).

(4)

RST and MS/ADR0/RSV (Schmitt trigger input with 50-k

Ω typical internal pull-down resistor, 5-V tolerant).

(5)

ZERO1 and ZERO2.

(6)

SDA (I2C mode, open-drain low output), and AMUTEO (open-drain low output).

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